Devcon Wet Surface Repair Putty ( UW )

Devcon Wet Surface Repair Putty ( UW )

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Devcon Wet Surface Repair Putty ( UW )/Under Water Repair Putty


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Makes (effective) repairs to metal, concrete, wood surfaces in wet and dry environments.

Intended Use

Repairing and refitting pipes, valves, pumps, and tanks. Repair concrete vessels and piping in wet environments. This product will bond to a wet or damp surface.


Bonds to aluminum, concrete and many other metals
Bonds to ferrous and non-ferrous metals
Bonds to wet surfaces
Bonds, patches, and seals metals



Technical data should be considered representative or typical only and should not be used for specification purposes.


Cured 7 days @ 75 F

Properties :




Mix Ratio by Volume


Cure Shrinkage ASTM D 2566

Mix Ratio by Weight


Adhesive Tensile Shear ASTM D 1002

% Solids by Volume


Dielectric Strength, volts/mil ASTM D 149

Pot Life @ 75F

45 min.

Dielectric Constant ASTM D 150

Specific Volume

17 in (3)/lb.

Flexural Strength ASTM D 790

Cured Shrinkage

0.0020 in./in

Compressive Strength ASTM D 695

Specific Gravity

1.4 gm/cc(2)

Cured Hardness Shore D ASTM D 2240

Temperature Resistance

Wet :120o F : Dry: 250o F

Coef. of Thermal Expansion ASTM D 696


68 sq. in. @ in.

Thermal Conductivity ASTM C 177

Cured Hardness

82 Shore D

Modulus of Elasticity ASTM D 638

Dielectric Strength

150 volts/mils

Dielectric Constant


Adhesive Tensile Shear

2,685 psi

Compressive Strength

5,625 psi

Modulus of Elasticity

7.5 psi x 10(5) in.

Flexural Strength

4,990 psi

Coefficient of Thermal Expansion

18 [(in.) x (in). x F)] x 10(3)

Cure Time

24 hrs

Recoat Time

10-12 min.

Mixed Viscosity



1. Thoroughly clean the surface with Devcon Cleaner Blend 300 to remove all oil, grease, and dirt.

Preparation :

2. Grit blast surface area with 8 - 40 mesh grit, or grind with a coarse wheel or abrasive disc pad, to create increased surface area for better adhesion (Caution: An abrasive disc pad can only be used provide white mesh is revealed). Desired profile is 3 -5mil, including defined edges (do not "feather epoxy).

Note: For metals exposed to sea water or other salt solution, grit "blast and high "pressure" water- blast the area, then leave overnight to allow any salts in the metal to "sweat" to the surface. Repeat blasting to "sweat out" all soluble salts. Perform chloride contamination test to determine soluble salt content (should be no more than 40 ppm ).

3. Clean surface again with Cleaner Blend 300 to remove all traces of oil, grease, dust, or other foreign substances from the grit blasting.

4. Repair surface as soon as possible to eliminate any changes or surface contaminants.

WORKING CONDITIONS: Ideal application temperature is 55o F to 90o F. In cold working conditions, heat repair area to 100 -110o F immediately prior to applying to dry off any moisture, contamination, or solvents, as well as to assist epoxy in achieving maximum adhesion properties.


It is strongly recommended that full units be mixed, as ratios are pre-measured.

Instructions :

1. Add hardener to resin

2. Mix thoroughly with screwdriver or similar tool (continuously scrap material away from sides and bottom of container) until a uniform, streak free consistency is obtained.

INTERMEDIATE SIZES (1,2,3 lb. units): Place resin and hardener on a flat, disposable surface such as cardboard, plywood, or plastic sheet), Use a trowel or wide- blade tool to mix the material as in Step 2 above.

LARGE SIZES (25 lb., 30 lb., 50 lb. buckets): Use a T- Shape mixing paddle or propeller type Jiffy Mixer Model ES on an electric drill, Thoroughly fold putty by vigorously moving paddle/ propeller up and down until a homogenous mix of resin and hardener is attained.

Application Instructions :

Spread mixed on repair area and work firmly into substrate to ensure maximum surface contact. Plastic Steel Putty (A) fully cures in 16 hours, at which time it can be machined, drilled, or painted.


Cure at room temperature for 2.5 hours, then heat cure for 4 hours @ 200oF.


Applying epoxy at temperatures below 70oF lengthens functional cure and pot life times. Conversely, applying above 70oF shortens functional cure and pot life.

For Underwater or submerged repairs consider the following.

- Remove all dirt, bamacles, flaking paint and algae/seaweed from the substrate.

- Wipe area with a clean cloth to remove any film on the surface. Obviously you cannot degrease underwater, but wiping and turning a clean cloth to remove any film on the surface.

- Abrade the surface if possible (Use mechanical means or a file to accomplish.)

- The oxidation can be removed by mechanical means, such as water, grit-blasting, or by chemical means.

- Make the repair as soon as possible to avoid surface contamination.


Store at room temperature.


Non e

Chemical Resistance :

Chemical resistance is calculated with a 7 day, room temp. cure ( 30 days immersion @ 75oF)


Very good

Chlorinated Solvent


Hydrochloric 10 %



Very good



Potassium Hydroxide 10%

Very good

Sulfuric 10%



Very good

Precautions :

Please refer to the appropriate material safety data sheet (MSDS) prior to using this product.

Warranty :

Devcon will not replace any material found to be defective. Because the storage, handling and application of this material is beyond our control, we can accept no liability for the results obtained.

Disclaimer :

All information on this data sheet is based on laboratory testing and is not intended for design purposes. ITW Devcon makes no representations or warranties of any kind concerning this data.


11800 1 lb.